Question

what would be the radical and exponential form of a radical expression?

Answer 1

*rational expression

Answer 2

\[\sqrt {2}=2^{\frac {1}{2}}\]\
Radical and Exponential forms, respectively.

Answer 3

radical being the root and exponential being the 1/2 i presume.

Answer 4

Correct. Did you have other questions about ratios and exponents?

Answer 5

do you know \[f^-1(x)\] problems?

Answer 6

Like this?
\[f^{-1}(x) = ????\]

Answer 7

exactly! i know it has to do with inverse functions with switching x and y.

Answer 8

but the way she presented it was in aa long word problem.

Answer 9

Sounds like generally you know how to find the inverses of a function.
{ from ::: http://www.uncwil.edu/courses/mat111hb/functions/inverse/inverse.html :::
Steps for finding the inverse of a function f.

Replace f(x) by y in the equation describing the function.
Interchange x and y. In other words, replace every x by a y and vice versa.
Solve for y.
Replace y by f-1(x). }}}

It would seem that you just need to find a way to parse the word problem into your first equation. Once you have that you can then find the inverse as usual - I would imagine.

Answer 10

...*inverse* of a function...

Answer 11

wow thanks for the website reference. you've been a big help. thanks a bunch :0]

Answer 12

Good luck. Also the Purplemath pages seem pretty good. (revealed after googling: 'inverse of a function'. Good Luck!